Some GUI adjustments / formatting found during #702

* selection in view (full row)
* Unused function removed
* Allow reduced message form

src/blackgui/components/updatetimer.h

@@ -25,6 +25,7 @@ namespace BlackGui
     namespace Components
     {
         //! Timer used in components for updates
+        //! \deprecated used at the beginning of the project, likely to be removed in the future
         class BLACKGUI_EXPORT CUpdateTimer: public QObject
         {
             Q_OBJECT